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| Age | 3 x 25-29 years
5 x 30-35 years 3 x 36-40 years |
| Parity | 5 x nulliparous
6 x multiparous |
| Highest level of education | 10 x complete third level
1 x complete second level |
| Ethnicity | 10 x white Irish
1 x non-Irish white |
